After several days of reflection, I have reformulated my ideas to comply with the required guidelines. As I stated before, I have a strong preference for using a general algorithm that does not rely on Unity tools, to be able to take it to re-use it on other platforms or programming languages without having to export it with the mentioned engine. This is getting complicated!
For the next few weeks, my focus will be on learning how to create procedurally generated random zones, starting with a study of some recent games that use these techniques and trying to learn more about these methods through reference material in order to create a relatively simple but effective way to do so with Unity.